儿童教育模式：children's educational ways
二语语感训练：second language sense training
二进位记数法：binary system
鄂东抗日斗争：Publicity
二语语法判断：L2 grammaticality judgment
二语习得理论：SLA theories
厄硫西斯秘仪：Eleusis Mysteires
二次电压控制：secondary voltage control
二次回路故障：a second return circuit trouble
二级光谱色差：Secondary spectrum
遏制“台独”：containing the Taiwan independence
儿童文学特辑：Children's literature special collection
二郎山花儿会：Erlangshan Huaer
二元生成子群：two-generator subgroup
儿童英语教学：children English teaching
二维概念模型：two-dimensional concept model
儿童语言习得：child language acquisition
二阶因子模型：CFA
额尔古纳地区：Erguna region
二茂铁配合物：ferrocenyl complex
二类水体光谱：case Ⅱ water spectra
鄂伦春自治旗：Oroqen Autonomous Government
耳内式助听器：hearing aids
儿童教育思想：children education thought
二元一次方程：two-variable linear equation
二元区域结构：Dual Regional Structure
儿童心理评估：Mental assessment for child
儿童生活世界：children's life world
二级错误信念：second-order false belief
鄂豫皖根据地：E-Yu-Wan revolutionary bases
二次世界大战：WWII
儿童文学创作：children literature works
二语语调切分：L2 intonation-phrasing
俄罗斯民法典：the Russian federal civil code
俄罗斯天然气：Russian natural gas resource
俄语对话研究：Russian speech study
二十年大趋势：general tendency in the past 20 years
二元农地产权：dual property rights of rural land
二阶隐式方程：second order implicit differential equation
恶意医疗行为：malicious acts of medical
儿童艺术教育：children's art education
儿童心理发展：children's psychological development
二语心理词汇：L2 mental lexicon
二次行政处罚：repeated administrative penalty
儿童心理理论：theory of mind
儿童社会工作：child social work for children
儿童最佳利益：the best interest of child
俄国西伯利亚：credit cooperative
俄罗斯标准语：Standard Russian
二语词汇深度：L2 vocabulary depth